| 数字化PWM技术在电流传感器中的运用 |
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| 引用本文： | 刘慧芳,胡志敏,李瑞.数字化PWM技术在电流传感器中的运用[J].核电子学与探测技术,2012(1):123-126. |
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| 作者姓名： | 刘慧芳 胡志敏 李瑞 |
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| 作者单位： | 中国科学院上海应用物理研究所 |
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| 摘 要： | 提出了利用DSP实现PID控制,结合DSP芯片内部定时器模块产生PWM信号,最后由该信号通过反馈电路产生相应的补偿电流,根据被测电流与补偿电流的安匝比关系即可得到待测电流值。经过实验测试,该设计可用于交直流信号测量。研究证明,该技术使新型电流传感器具有高稳定性。
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| 关 键 词： | PWM 电流传感器 反馈控制 DSP |
Application of Digital PWM Technology in Current Transducers |
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| LIU Hui-fang,HU Zhi-min,LI Rui.Application of Digital PWM Technology in Current Transducers[J].Nuclear Electronics & Detection Technology,2012(1):123-126. |
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| Authors: | LIU Hui-fang HU Zhi-min LI Rui |
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| Affiliation: | (Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China) |
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| Abstract: | With the development of DSP technology and mature use of PID technology,a new program for DC or AC signal measurement is proposed.Combined with the DSP chip timer module and PID algorithm,PWM signals are generated to control the feedback circuit for the compensation current.Finally the measured current value can be obtained according to the ampere-turns of compensation current and the measured current.Studies have shown that this technology enables new current transducers have high stability. |
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| Keywords: | PWM Current Transducers feedback control DSP |
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